Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Boatboy on 15 April 2010, 10:55:12

Title: Checking a cam cover for warp.
Post by: Boatboy on 15 April 2010, 10:55:12
Yesterday I fitted a replacement (used) cam cover to the 246 bank in an attempt to stem a slight oil leak that was getting onto the manifold and making a right mess and stink.

So far (50 miles) all nice and dry on the outside.

Looking at the old cover and wondering how straight a serviceable cam cover should be, I did a quick check with a steel rule, workbench and feeler gauges. There are measurable gaps along the outer 'mating' surfaces, up to 0.35mm,  with the cover only touching the rule at the ends.

Looking down from above the edge wanders a lot, most noticeably in the area around the filler neck opening.

Are these features acceptable (desireable even) or does it mean the cover is pooped and only suitable for sale on fleabay? ;D

Obviously I now wish I had checked the replacement likewise for comparison, but it came from a reputable source and I did not wish to disrupt my train of thought.


History. GM gaskets fitted and breathers cleaned in January as part of HG replacement by respected oofer. At the time, old gaskets found to be smothered in clear sealant all round. Dont remember if they were GM or not, but previous owners spanner merchant clearly not a reader of oof :y

Probably the same clown that did not flare the end of a brake pipe and fitted oversize exhaust clamps. The list goes on.


Steve


 

Title: Re: Checking a cam cover for warp.
Post by: MutantCav on 15 April 2010, 14:29:47
Its possible to warp them but really not that common...more likely that the bolts have been over tightened...but basically the cover should sit squarely on a flat surface I believe...but you have to be sure the surface is flat in the first place lol
Title: Re: Checking a cam cover for warp.
Post by: tunnie on 15 April 2010, 16:23:54
warping them is a myth, using second hand gaskets is asking for trouble
Title: Re: Checking a cam cover for warp.
Post by: Elite Pete on 15 April 2010, 17:40:46
Quote
warping them is a myth, using second hand gaskets is asking for trouble
No its not, I had a pair which were in a right state a couple of weeks ago. It looks like they had been over tightened at some point.
Title: Re: Checking a cam cover for warp.
Post by: Elite Pete on 15 April 2010, 17:43:14
And I would say that the new gaskets which were only replaced in January should be ok to re-use ;)
Title: Re: Checking a cam cover for warp.
Post by: Zuffenhausen on 15 April 2010, 17:51:56
Quote
Quote
warping them is a myth, using second hand gaskets is asking for trouble
No its not, I had a pair which were in a right state a couple of weeks ago. It looks like they had been over tightened at some point.

Hope these were not ours.  :-[
Title: Re: Checking a cam cover for warp.
Post by: Elite Pete on 15 April 2010, 17:53:50
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Quote
Quote
warping them is a myth, using second hand gaskets is asking for trouble
No its not, I had a pair which were in a right state a couple of weeks ago. It looks like they had been over tightened at some point.

Hope these were not ours.  :-[
;D ;D
No Graeme it was the week after yours ;)

http://www.omegaowners.com/forum/YaBB.pl?num=1270495125
Title: Re: Checking a cam cover for warp.
Post by: des.allen on 15 April 2010, 18:10:25
Quote
Quote
Quote
Quote
warping them is a myth, using second hand gaskets is asking for trouble
No its not, I had a pair which were in a right state a couple of weeks ago. It looks like they had been over tightened at some point.

Hope these were not ours.  :-[
;D ;D
No Graeme it was the week after yours ;)

http://www.omegaowners.com/forum/YaBB.pl?num=1270495125
And everywhere is still oil free :y :y :y
Title: Re: Checking a cam cover for warp.
Post by: Zuffenhausen on 15 April 2010, 21:42:45
Quote
Quote
Quote
Quote
Quote
warping them is a myth, using second hand gaskets is asking for trouble
No its not, I had a pair which were in a right state a couple of weeks ago. It looks like they had been over tightened at some point.

Hope these were not ours.  :-[
;D ;D
No Graeme it was the week after yours ;)

http://www.omegaowners.com/forum/YaBB.pl?num=1270495125
And everywhere is still oil free :y :y :y

Same here - Top Job Pete !!!    :y  8-)  :y